From an idea to a product people pay for.
I build lean SaaS products with user accounts, Stripe subscriptions and customer-portal logic – the same way I build and run my own products.
Explained
Updated:
What is a SaaS product – and what does it take to build one?
SaaS (software as a service) is software that runs in the browser and that customers pay for regularly, usually per month. Behind a simple login screen there is more than most people expect: user accounts and roles, a database, payments and subscriptions, emails, an admin area and the security around all of it. Most projects do not fail on the idea but on scope, because too much is built before the first customer pays. That is why every project starts by deciding what the first version really needs. I build and run my own SaaS products – FellDesk for dog groomers and the DATEV export app for Shopify – so the questions that only come up after launch, such as failed payments, support requests and updates, are part of the plan from day one.
What for
- Customer portals: files, approvals and project status for your clients
- Internal tools you want to sell as a product of their own
- Niche software that solves one industry task really well
- Embedded apps for platforms like Shopify
What's inside
- Sign-up, login and roles
- Subscriptions and payments via Stripe
- Database, admin area and reporting
- Documentation and handover – no black box
You get
A product people can pay for
Built and run by me
FellDesk
Management and scheduling software built specifically for dog groomers. Client records, pet profiles, and appointment tracking without fluff.
DATEV Export
Shopify app for automated export of orders, fees, and refunds in DATEV-compliant format directly to tax consultants.
Is this for you?
A good fit – and when it isn't.
A good fit if …
- You have a product idea and want a first version that customers can pay for
- You run an internal tool or spreadsheet process that others would pay to use
- You need a customer portal for files, approvals or project status
- You want an app for a platform such as Shopify
Not the right fit if …
- You are looking for an agency with project managers and a large team
- The first version has to contain every feature on your wish list
Process
How it works
- 1
Idea & scope
We decide what the product must do – and what is deliberately left out.
- 2
Architecture
Data model, login concept and payment flow are settled before the first screen is built.
- 3
Build in steps
I build in small, working increments. You test each one yourself and decide what comes next.
- 4
Launch & handover
Go-live, monitoring and documentation that you or any other developer can work with.
FAQ
Questions that come up a lot.
What does it cost to build a SaaS product?
It depends on the scope. That is why we first define the first version together. You then get a concrete quote for exactly that scope instead of a vague estimate for everything at once.
Who owns the code and the data?
You do. You get the source code, the documentation and access to every service involved, such as hosting, database and Stripe. The product has to keep running even if we stop working together.
How are payments handled?
Through Stripe: subscriptions, one-off payments, invoices and the handling of failed payments. Your customers pay you directly – the money never passes through me.
What happens after launch?
You decide. I can stay on for monitoring, updates and new features, or hand everything over with documentation so that you or another developer can carry on.
Which technology do you use?
Whatever fits the product and can be maintained later: lean PHP with MySQL or MariaDB, Next.js where it makes sense, Stripe for payments. No exotic stack that only one person understands.
Contact
Tell me what you want to build.
A few sentences are enough. I usually reply within one working day – with an honest take on whether and how I can help.